#include <stdio.h>

int main ()
{
	char str[50] = {'\0'};
	fgets(str,50,stdin);
	
	int i;
	for ( i=0; str[i]!='\0'; i++) {
		if ( str[i]>='a' && str[i]<='x') 
			str[i] += 2;
		else if ( str[i]>='y' && str[i]<='z') 
			str[i] -= 24;
		else if ( str[i]>='A' && str[i]<='X') 
			str[i] += 2;
		else if ( str[i]>='Y' && str[i]<='Z') 
			str[i] -= 24;
	}
	puts(str);
	return 0;
}